Improvement in stoves and furnaces



2 Sheets--Sheet1.

W. P. HALL.

v Stoves and F urnaces. I N0.153,073. Patentedluly14,1874.

LVVENTOR WI TNESSES. v

/ r 6 C J I C M V l By @(4 Attorney s.

QShetv-Sheet 2. W. P. H A LL.

Stoves and Furnaces. v

Patented July 14, 1824'.

No.153,073. I [692. i

J Y Z L J Z 6. F

WITNESSES. INVENTOR Attorneys THE GRAPHIC CO- PHOTO-LITHJQllPARKPLACEJUI.

rn STATES ATENT rrron.

WILLIAM r. IIALL, or PIQUA, onro.

Specification forming part of Letters Patent No. 153,073, dated July 14,1874; application filed June 3, 1874.

To all whom it may concern:

Be it known that I, YVILLIAM P. HALL, of Piqua-, in the county of Miamiand in the State of Ohio, have invented certain new and usefulImprovements in Stoves and Furnaces; and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanyin g drawings and to the letters of referencemarked thereon, making a part of this speciflcation.

My invention relates to that class of heating-furnaces or stoves inwhich a series of pipes are arranged around the fire-box for heating theair passing through them; and it consists in the construction andarrangement of the several parts, as hereinafter more fully set forthand claimed.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure l is a perspective view of my furnace or stove, part of the casing being broken open to show the interior thereof. Fig. 2 is alongitudinal vertical section of the same. Fig. 3 is an inverted view ofthe dome over the fire-pot; and 4 is a perspective view of a part of thecasing, showing the door of the fuel-magazine.

A represents an ordinary stove or furnace base with ash-box B andfire-pot O, the latter having a sliding grate, a, in the bottom. Drepresents the casin g or j aekct which surrounds the entire base B andextends upward a suitable distance above'the fire-pot. Inside of thiscasing is a horizontal flange, b, the inner edge of which rests on theupper edge of the flrepot (J. The flange b is provided with a circulardownwardprojecting flange, (Z, and a circular upwardprojecting flange,c, as shown in Fig. 2. Between the flanges (Z c and the easing D theflangeor rim 1) is provided with a series of slots or openings for theinsertion of the lower ends of a series of tubes or flues, E E, whichpass through and are secured to the top or crownsheet G of the casinFrom below the rim 7) partitions f f extend downward to the lowered geof the casing, forming a series of channels, one for each flue E, so asto divide the cold air as it passes in under the lower edge of thecasing and direct it to the various flues. These fiues may then bearranged to conduct the heated air to different apartments, and theopening and closing of one or more registers will not affect the heatpassing through other registers to other apartments. Upon the inner edgeof the rim 1) within, and held by, the flange e, is a dome, H, made offire-brick, or other suitable material. This dome is constructed asshown in Fig. 2, with a series of slots, h h, in the sides between theflues E E, through which the products of eombustion'pass to envelop thefines E E and heat the air passing through them, the products ofcombustion passing upward and through the pipe I in the center of thecrownsheet G. In the top of the dome H is formed an interior chamber, J,to which passages z 1 lead through the sides of the dome between theslots h h. The lower ends of the passages & open in a groove, m, made inthe lower end of the dome, and this groove is supplied with cold airthrough apertures n in the inner edge of the rim 1), as shown in Fig. 2.The air that passes up through the passagesz' iinto the chamber J in thetop of the dome escapes into the combustion chamber within the domethrough a number of small passages, 00, made in and around a conicalprojection, 12, extending downward from the center of the dome. The airalso escapes through passages y in the upper end of each slot h. Bythese means a suflicient amount of oxygen is obtained and supplied tothe tire for a thorough combustion of the fuel. 8 represents theaperture for the admission of the fuel in the fire-dome H, and oppositethe said opening is formed a box, K, on the inside of the casing D,which box extends up to, or nearly to, the top of the easin g, and hasan aperture, 8 corresponding with the aperture 8 in the fire-dome. Thefront of the box K is closedby a hinged door, L, on which is formed themagazine M, said magazine having on its inner side near the bottom anaperture, 8 corresponding with the openings s and s, and 011 the frontnear the top a feed-door, t, and at the bottom a draft-door, On eachside of the box K is a flue, E, eorre sponding with, or rather takingthe place of, the flue E, which is removed or omitted to give room forthe box K.

The above-described invention when made on a large scale is used as afurnace, and is placed in a basement or cellar or other suitable placein a building for heating the same by means of the usual convey-pipes,and when made on a small scale it is used as a heatingstove.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, isy 1. The combination with thefire-dome H, having air-inlet passages i and groove min its lower edge,of the rim I), provided with flanges d e and apertures a, substantiallyas and for the purposes herein set forth.

2. The partitions f f in combination withr the casing D and fines E E,substantially as set forth.

3. The hinged door L, provided with the magazine M, in combination withthe box K in the casing D, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this3d day of J une, 1874.

WILLIAM P. HALL.

Witnesses J. M. MASON, O. M. ALEXANDER.

